Magic: Sample Symbol Lexicons
GURPS Thaumatology suggests symbol magic as one of the possible flexible magic systems. The caster inscribes symbols on a parchment, an object, traces them in the air, or constructs a symbol spell from the tokens he has, and activates it, producing the intended effects. This is a slow process. Each symbol has a base cost, but the book also provides other pricing guidelines, including just finding the most similar spell in GURPS Magic, taking its casting cost, and adding 1 or 2 points for extra flexibility.
Since I'm preparing for a game where I planned to use symbol magic alongside the vanilla magic and Sorcery, it's a good time to make some sample lexicons.